Floor construction



Feb. 13, 1934. J. KAHN FLOOR CONSTRUCTION Filed Sept. 18. 1931 Patented Feb. 13, 1934 UNITED STATES FLOOR CONSTRUCTION Julius Kahn, Youngstown, Ohio, assignor to Truscon Steel Company, Youngstown, Ohio, a corporation of Michigan Application September 18, 1931 Serial No. 563,630

2 Claims.

The present invention relates to a supporting structure, such as a floor, roof, or the like, and the members forming the same.

The object of the invention is to provide in such a structure means for allowing a plastic cementitious surfacing material to be applied directly to the supporting members without the use of a sub-surface or similar intermediate means, and insuring its being properly tied thereto.

In the accompanying drawing:

Figure 1 is a perspective view of the completed structure, having a portion of the surfacing material removed.

Figure 2 is a detail sectional view through a portion of the structure and showing one of the tie elements.

Figure 3 is a sectional view substantially on the line 3--3 of Figure 2.

Figure 4 is a sectional view on the line 44 of Figure 1. V

Figure 5 is a plan view of a portion of the hearing wall of one of the supporting members.

In the preferred embodiment of the invention, supporting members 1 are provided which are formed preferably of deformed plate metal. Each member 1 has a supporting or bearing wall 2, and downwardly extending flanges 3 and 4 along the longitudinal edges thereof. In the center of the member 1 is a downwardly extending longitudinal strengthening rib 5. The

flanges 3 and 4, and the rib 5, are at right angles to the bearing wall 2 of the member. The flanges 3 are provided along their free edges with inset doubled ribs forming grooves 6, and the flanges 4 with outwardly offset tongues '7, the tongue '7, borne by one of the members 1, being adapted to be engaged in the groove 6 of the next adjacent member as shown in Figure 1. The members 1 may be formed by pressing or bending metal plates into proper form.

The top fiat wall, or bearing portion 2 of each member 1 is provided with a plurality ofupstanding tie elements, which are preferably in the form of loops 8 that are struck up from the metal of the bearing portion 2 of the member 1 by stamping, rolling or other suitable operation. The tie elements are so formed as to leave a space between the wall 2 and a portion of the tie element as at 9 in Figure 4.

59 In assembling the structure, a series of the bearing members 1 may be positioned in engaged relation upon trusses 10, which are suitably supported, as by beams 11. The flanges 3 and 4, which bear upon the trusses 10, are secured thereto by any suitable means. A plastic cementitious surfacing body 12 of sufficient fluidity to flow around and beneath the loops 8 is then applied to the bearing walls 2 of the members 1, to a thickness suflicient to completely cover the loops 8. This surfacing material flows beneath the loops 8,

and they become embedded in it, as shown in Figures 2 and 3. Upon hardening of the material 12 a very strong bond is formed between it and the members 1 by reason of the loops being so embedded; The surfacing material 12 may be of any plastic material sufficiently fluid to flow beneath the loops 8, and which, when hardened, will form a surface suitable for the intended use of the structure.

The advantages of this structure will be clear. It does away with the necessity of a subfioor, but

provides an extremely strong bond between the supporting structure and the surfacing material. The absence of a subfloor gives a saving in weight and affords a structure that is simple and one easy to install. The body of covering material is strongly bonded to the supporting members and the members are bonded together by the body of material, thus providing an exceptionally strong and rigid structure. It is durable and fireproof and needs no special type of building construction, being applicable to any suitably spaced trusses or joists.

From the foregoing, it is thought that the construction, operation and many advantages of the herein described invention will be apparent to those skilled in the art without further description and it will be understood that various changes in the size, shape, proportion and minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

What. I claim, is:

1. A load carrying structure for floors, roofs, etc. comprising spaced supports, a series of elongated metal supporting members located side by side and extending across the supports, said members comprising top walls and depending flanges along their side margins that rest on the supports and stiffen the top walls between the supports, the top walls having upstanding tie elements struck therefrom, and a continuous body of plastic material covering a plurality of the top walls and extending across the joints between them and having the tie elements embedded therein.

2. A load carrying structure for floors, roofs etc. comprising spaced supports, a series of elongated metal supporting members located side by side and extending across the supports, said members comprising top walls and depending flanges along their side margins that rest on the supports and stiffen the top walls between the supports, the top walls having loops integral and upstruck therefrom between the planes of the side flanges,

'and a continuous body of plastic material covering a plurality of the top walls and extending across the joints between them and having the tie elements embedded therein.

JULIUS KAHN. 

